“Not many music lovers have warmed to the idea that they don’t retain all the rights to the music they buy. The crux of the debate is this: When you buy a song, an album, or a movie, are you buying the content only in the form it comes in? If you purchase a song from Apple’s iTunes store, should you be able to play it on any hardware you want? Not according to Apple, which bundles each download with a “digital rights management” scheme called FairPlay.”